Centrifugal separator.



PATENTBD MAR. 19, 1902. j

' P. T. .SUNDB'ERG. GENTRIFUGAL SBPARATOR.

APPLICATION FILED JUNE 17, 1905.

PER T. SUNDBERG, OFPSTQQKHOLM, SWEDEN.

CENTRIFUGAL sEPgiRAToR;

Specification of Letters Patent.

Patented March 19, 1907',

Applicationfiled June 17,1905. Serial No. 265.772.

To all LUZMIITI/ [It may concern,-

Be it known that I, PER THEoDoR SUND- BERG, a subject of the Kingdom of Sweden, residing at Sibyllegatan', 46/48, in the city of Stockholm and Kingdom of Sweden, have invented a new and useful Centrifugal Separater, of which the following is a specifica tion.

My invention relates to improvements in centrifugal bowls for. separating fluids of different specific gravity; and the object of my invention is, first, to increase the capacity of the bowl; second, to afford a stable suspension of the same, and, third, to simplify the construction. How I attain these objects will be described. with reference to the accompanying drawing, in which Figure 1 is a'vertical section of a-eentrifugal bowl constructed accordin 'to this invention. it appears after removal and cover-plate.

The bowl k may, as usually, have the shape of an inverted funnel, the upper part of which of the nut, cover,

forms an inlet 0 for the liquidwhich is to be treated, while the lower part of the center of the bowl forms a conic socket for the upper end the spindle. This socket extends above the center of gravity of the bowl, so as to afford a stable suspension of the latter on said spindle.

The outer face of that part of the tubular shaft which corresponds to the pile of insertion-plates t is cylindrical and has two or more (in the drawing three) vertical ribs f, which engage corresponding slots in the inner edge of the plates. These slots are enlarged inradial direction, so that holes a, limited inward by the ribs], are formed in the plates, and. as said holes lie above each other vertical channels are formed in the pile of plates t. Each. of these vertical channels communicates with the inlet by means of a radial or inclined channel Z, formed in the upper part of the rib f, so that the liquid from the inlet e will flow through the radial or inclined ways I directly to the vertical channels formed by the holes a, from where it is distributed be tween the plates.

The centering'of the plates t effected by their resting upon. the conical bottom of the bowl, Meanwhile the ribs f, having shoulders 9, form other vertical channels h, in

which the lighter fluid can ascend to the out let, or such channels may be formed by Fig. 2 is a top view ofithesame as grooves h on the tubular shaft or by slots in the inner edge of theplates.

, The outlets for the separated fluids may be I arranged in any known or other, suitable manner. In'the form shown in the drawing the cover 0 has a shoulder on the neck anda hole with screw-plug c in said shoulder, the plug having'an eccentric discharge-opening at. The heavy part of the fluid ascends inside the coverc, bet-ween that and the cover? plate-d, which is distanced therefrom. by radial ribs cl, so that the fluid can reach the outlet 0. The light fluid ascends inside the neck (1 of the cover-plate d and is discharged at 0.

Itv should be understood that the form shown in the drawing is-only an example, the

essential feature of my invention being that the holes a, consist of slots in the inner edge of the plates, limited inwardly by the ribs f,

and that the vertical distribution-channels formed by said holes a communicate directly with the inlet a byshort radial or inclined ways 1, formed in the upper part only of said ribs, so that the socket for the spindle can reach'above the center of gravity of the bowl without interfering with the channels or necessitating any enlargement of the tubular shaft. I thus can'use a slender tubular sh aft and increase the capacity of the bowl without increasing its height or diameter,

I am aware that prior ,to my invention holes in the plates have been used for forming vertical distributing-channels. I therefore do not claim such holes broadly; but

What I claim as my invention, and desire to secure by Letters Patent, is

1. In a centrifugal bowl .provided with a liner, a plurality of superposed conical plates, the tubular shaft of said bowl being provided with vertical ribs engaging corresponding slots in said plates, said slots being en largcd in radial direction and said ribshaving shoulders engaging the inner edges of the plates to form vertical channels. I

2. In a centrifugal bowl provided with a liner, a plurality of superposed conical plates, the tubular shaft of said bowl being provided with vertical ribs engaging corresponding slots in said plates, said slots being enlarged in radial direction, and said ribs having shoulders engaging the inner edges of the plates to form vertical channels the upper part of said ribs being formed with radial channels, 1, afl'ording communication be-' IIO ' t'lveen tl e i11letand each of-said verticel part of said ribs being formed eneh with a ra-,

ldinl channel 1, which channels communicate direet-ly with the inlet andwith the vertical channels.

In testimony wheredf I have signed my 5 mu'ne to this speeifieation in the presence of two suhsiaribmg witnesses.

' P. SUNDBERG,

Witnesses:

L. RAMELL, 1 BERTIL ,NYMAN. 

